Chicago's skyline is seen as a United Airlines jet takes off from Chicago O'Hare on Sept. 19, 2014. In the distance is the Willis (Sears) Tower that's home to United's official headquarters. Scott Olson, Getty Images

A tiny United Express CRJ regional jet is dwarfed by the massive the Emirates Airbus A380 taxiing behind it at San Francisco International Airport on Oct. 23, 2016. Jeremy Dwyer-Lindgren, special for USA TODAY

Singapore Airlines' first nonstop flight connecting Singapore and San Francisco taxis to the gate at San Francisco International Airport after arrival on Oct. 23, 2016. Jeremy Dwyer-Lindgren, special for USA TODAY

A Japan Airlines (JAL) Boeing 777 leads the way through a heavy crosswind while a British Airways Airbus A380 follows behind for landing at San Francisco International Airport on Oct. 23, 2016. Jeremy Dwyer-Lindgren, special for USA TODAY

BusinessFirst passengers are given pre-departure drinks after boarding United's new Boeing 787-9 Dreamliner for the carrier’s launch of service between Los Angeles and Melbourne, Australia, on Oct. 26, 2014. United Airlines

Dave Hilfman, United's SVP of Worldwide Sales, welcomes customers, officials and employees to the launch of the airline's new nonstop Dreamliner service to Melbourne, Australia, on Oct. 26, 2014. United Airlines

Chicago-based chef Art Smith created a seasonally-influenced, locally-sourced menu for the Polaris Lounge. Also served at the lounge: his signature fried chicken and Hummingbird Cake. Harriet Baskas, special for USA TODAY

Artist Wolfgang Buttress created the Chicago-inspired light sculpture for the Polaris lounge and will also create an original installation for the other eight Polaris lounges. Harriet Baskas, special for USA TODAY